I'm not familiar with Kodak PRD film, however, this is from my photography days.
Kodachrome colour slide film has a very distinct colour cast as it ages. The processed slides turn pink! Your film will probably be old stock, albeit unprocessed which could have something to do with it.
Exposing photographic slide film in a camera to capture an image is usually for only a fraction of a second - 1000th of a second sometimes. It follows, any handling of film must be done in total darkness otherwise it will fog.
The same applies to printing paper although it's not so light sensitive. Small amounts of stray light on the paper before fixing will turn it pink. If that happens, the pink colour cast is 'fixed' and will not clear.
Maybe there's a clue in there somewhere will throw some light on your problem. (pardon the pun!)
Peter
MM5PSL
----- Original Message -----
From: jmelson2
To: Homebrew_PCBs@yahoogroups.com
Sent: Sunday, March 06, 2011 4:41 PM
Subject: [Homebrew_PCBs] Re: Kodak PRD film ?
--- In Homebrew_PCBs@yahoogroups.com, "cunningfellow" <andrewm1973@...> wrote:
>
> > Jon wrote:
> > <SNIP>
> > I get an image with this Kodak PRD film,
> > but when I put it in the fixer, the clear
> > areas turn quite pink! I
>
> Jon,
>
> Is it rapid-fixer or hypo ?
>
It is Kodak Rapid Fixer, really sold for print paper, I suppose.
Kodak suggested diluting the fixer, but that didn't help. The film looks great after development, completely white with black marks where intended. About 5 seconds after putting it in the fixer, I can see it starting to darken.
I am quite sure the film is not SUPPOSED to look like this, as the pink-orange color is blotchy. I would expect it to be very consistent if it was the intentional color of the backing.
I am working on getting the right Rapid access developer and fixer, but few shops use silver film anymore, so it is getting harder to get supplies.
Jon
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